Or:
(defn sv [vector value]
(let [i (.indexOf ^java.util.List vector value)]
(if (neg? i) [] (subvec vector i))))
On Sat, May 14, 2011 at 7:50 PM, Jonathan Fischer Friberg <
[email protected]> wrote:
> I think this should be pretty fast
> https://gist.github.com/972423
>
> It is at least faster than using split-with:
>
> (time (dotimes [_ 1e6] (last (split-with (partial not= 'x) '[a b c x d
> f]))))
> => "Elapsed time: 521.288318 msecs"
>
> (time (dotimes [_ 1e6] (subvec-at-val 'x '[a b c x d f])))
> => "Elapsed time: 315.532724 msecs"
>
> Jonathan
>
>
> On Sat, May 14, 2011 at 7:32 PM, Base <[email protected]> wrote:
>
>> Hi All-
>>
>> I am sure I am just missing this in contrib somewhere , but....
>>
>> I am trying to find a subvector such that it returns the rest of the
>> vector at the first occurrence of a value
>>
>> (def v ['a 'b 'c 'd 'e 'f 'g])
>>
>> (my-fun 'c v)
>> => ['c 'd 'e 'f 'g]
>>
>> I need this to be *really* efficient (who doesn't, right)
>> Sort of looping through this, what is the best way?
>>
>> thanks
>>
>> base
>>
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>
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